Coin-controlled switching mechanism



Oct. 21, 1930. F. L. COFFING ET AL 1,779,086 4 COIN CONTROLLED SWITCHING MECHANISM Filed Feb. 28, 1929 2 Sheets-Sheet l Inventor 110 6! L. Goff/mg Ovfc/ 7- Medley y g M Atlorney Oct. 21, 1930.

F. L. COFFING AL COIN CONTROLLED SWITCHING MECHANISM Filed Feb. 28, 1929 2 Sheets-Sheet 2 o m w n 1% mm M L 0 Y m Ly F0 Byqh Allomey Patented Get. 21, 1930 V COIN-CONTROLLED S'WITCZ-EZLFG- MECIIANISM Application filed E'ebruary 28, 1929. b'erifil H0. 5433 31 t anew and improved form of coin controlled plate into con'a apparatus by which an electrically operated 't broken in th mechanism may be started at will and auto be described. matically stopped at a given interval the The electric energy after and by which radio apparordinar other suitable device ma be ll'l lQlllllhttr The object of this invention is to provide closed and this a n it 8 rom 1 operated. net 7 the conductor 6 lead to a contact Another object of the invention is to simspring 1 which lllilLQS conlact w 1 the one plify the electric circuit and operating inecor the other of the pies and 12 cards; on 60 anisin therefor so that there is little or no the gear wheel 13. This wheel 13 chance of their getting out of order. meshes with the gear wheel 1311 which i Another object of the invention is to che carried on the same Tv'liil the wor" en the cost of manufacture them-o1 and ma wheel 1% which is driven by a w rir the p art strong which together with in turn is driven by an armature 16 By m plicity thereof will enable the a; pa" of the windings 17 and 18, this of rus to l withstand the ustomary abuse of slot maapparatus being substant ly the one as. chines. ordinarily used in a w -hour meter or These and other objects of the invention synchronous motor, the and contact will be illustrated in the draw ngs dcscriccl switch being adc ed thereto. The conduc- 70 n the specification and pointed out in the tor 6 connects to the contact SPURSZS 10, pin 1 1 1 1. P l l f+1f i w l L 3'10 .i

CLZHIHS at the end bllQrnC'I. 11 ant. s 1a o lo nitn cue (301K ucioi 1a WllICiL 1n the drawings: connects through t 1e hearing 20 and conduc- Figure 1 is a diagrainin tne tor 21 to the main 9 which is also connected coin controll d mechanism and electric cir to the windings 17 and18 of the motor. jhe 75 cuits and operating mechanism connected main 8 is connected to one side of an electherewith. trical apparatus contained in the radio set Figure2is a diagrammatic view of a modior other device that is used and the main 9 tied form of the switch and ole *tro-magnet connected to the other side through the for closing the circuit. winding 17.

Figure 8 is a top plan view of me i shown in Figure 1.

Figure 4 is a side elevation of the gear 13 looking at it from the right in 1 j Figure 5 is amodified form of tne ro switch showing the contact pins carried on a separate disc.

in the drawings like reference numerals indicate like parts.

In the drawings reference 1 2 indicate contacts which are in the circuit by means of the con the further pivoted at 5. When a coin of suitaand weight in deposited on the plat plate is swung to the dotted line 1 wherein the contact 3 closes the circuit be-- tween the contacts 1 and 2. Ehe conductor 11 11. use 2 we have Sil-OTli modified 6 coils around a bar makin an electroma form of the switch in which tl e olat "i is D C) it net which is energized when the circuit is p voted at 5A and is normally held up by 109 the spring 6A. This plate carries a contact first named switch to be opened to break the 1A that touches the contact 2A and closes clrcult. the circuit that energizes the electromagnet In testimony whereof we aiiix our signa- 7A. The balance of the circuit contacts and mechanism is otherwise the same as is shown in Figure 1;

In Figure twe have shown the gear 13 mounted on the supports and 26. The shaft of the gear 13A is carried on the supports 27 and 28. The supports 25 and 26 for the shaft and the gear 14: also appear in Figure 4-, In Fig. 5, instead of the arrangement shown in Figure 4L we substitute for the gear 13 a disc 30 which carries the pins 11 and 12. This ear is carried on a A. b

shaft 31 which rotates in the supports 32 and 33 and is driven by the gear ea which in that case meshes with the gear 13A, the balance of the mechanism being otherwise the same.

Thecircuit controlled by this device will be used to o erate radio an aratus or an other suitable device and the length of time which it would be allowed to operate would be controlled by the gearing shown. This time can be lengthened v or shortened by changing the gears to secure this result.

This time can also be lengthened or hort-' .ened by adjusting the magnetic flux passing through the armature 16 causing it to rotate at a different rate of speed. In either these ways a wide range of time during which the operation of the device is permitted may be secured.

We claim:

1. A coin vcontrolled switching mechanism '7 comprising a motor having an armature, a shaft on which said armature is mounted to rotate, a'worm on said shaft, a-worm gear driven thereby, a wheel driven from said worm and gear train, ains carried on said wheel, a spring making contact with one or the other of said pins, to close and open auxiliary contacts, a shaft for said wheel, normally open auxiliary contacts in series with said pin and spring, a coin operated switch for closing said circuit and causing said armature to rotate, an electromagnet in said circuit adapted to hold the switch in position to keep the circuit closed, said circuit being broken by the rotation of the wheel carrying one or the other of said pins out of contact with said, sprin 2. A coin controlled switching mechanism having two switches therein, a spring by which one 01 said switches is normally held open and the other of which is normally closed, an electromagnet in thecircuit and adapted to be energized by the closing of the first switch and to remain closed, a motor in series with the switches adapted after a predetermined time to operate the second named switch to open and againv close it, thereby momentarily opening the circuit and deenergizing the magnet and permitting the tures. 

